**4. Rent; Unconditional Obligations; Security.** 

 a. Lessee shall pay to Lessor, monthly, in advance, for the use of the Aircraft, the sum
of the management fees and costs, maintenance services and Aircraft operating expenses billed to US Home Corporation by its provider of Aircraft management services, plus the monthly cost of the
Aircraft under the Banc of America Lease, in United States dollars, plus applicable sales tax with the first such payment of rent with respect to the Aircraft being due on the first day of December, 2008, and a like amount on the
first day of each month thereafter for the full term of this Lease, or, if such date does not fall on a business day, on the first business day immediately succeeding such date. Notwithstanding the foregoing, Optional Payor may, at his sole
discretion and from time to time, pay the rent (or any portion thereof), due under this paragraph 4(a) provided, however, to the extent that the Optional Payor remits a portion of the rent, the Lessee shall pay the remaining portion of the rent.


 b. Lessee shall also pay to Lessor, on demand, interest at a rate per annum equal to the Late Charge Rate on any installment of rent and
on any other amount owing hereunder which is not paid when due for any period for which the same shall be overdue. Each payment made under this Lease shall be applied first to the payment of interest then owing and then to rent or other amounts
owing hereunder. Interest shall be computed on the basis of a three hundred sixty (360) day year and actual days elapsed. 

  


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